Question

Air contained in a rigid, insulated tank fitted with a paddle wheel, initially at 300 K, 2 bar, and a volume of 2 m3, is stirred until its temperature is 500 K. Assuming the ideal gas model, for the air, and ignoring kinetic and potential energy, determine

Answer 1

Answer:

The final pressure in bar will be "$\frac{10}{3} \ Bar$".

Explanation:

As we know,

PV = nRT

$\frac{P_1}{T_1} =\frac{P_2}{T_2} =CONST$

then,

⇒ $\frac{2 \ bar}{300 \ K} = \frac{P_2}{500 \ K}$

⇒ $P_2=(\frac{2}{300}\times 500 )Bar$

        $=\frac{10}{3} \ Bar$

Thus the above is the correct answer.